Pilot Check Valve: Metal Body Type

Transcription

1 INFORMATION Pilot Check Valve: Metal Body Type The use of a metal body improves strength and environmental resistance. Temporary intermediate stops are possible. *1 *1 Precise intermediate stops are not guaranteed. Three types capable of connecting to female threads and s are available. Rotates 360 Example of a drop prevention circuit Workpiece Flame-resistant resin (Equivalent to UL-94 Standard V-0) : Female thread : Female thread : Male thread Port size on the valve side Port size on the Female thread (Rc, G) cylinder side 1/8 1/4 3/8 1/2 AS2200-m01m-X785 1/8 M5 V AS2200-m02m-X785 1/4 V R, G 1/8 AS3200-m03m-X785 3/8 Rc, G V AS4200-m04m-X785 1/2 1/4 V : Female thread : Port size on the cylinder side Port size on the valve side ø10 AS4201-m04-Fmm-X785 R, G 1/2 Rc, G 1/4 V V ø12 : Male thread : : : Male thread Port size on the valve side Port size on the cylinder side ø6 ø8 ø10 AS2201-m01-Fmm-X785 1/8 V V AS2201-m02-Fmm-X785 R, G 1/4 ø6 V V V AS3201-m03-Fmm-X785 3/8 V V AS-X E672

2 AS-X785 Specifications Symbol Fluid Proof pressure Max. operating pressure Min. operating pressure Pilot check valve operating pressure Ambient and fluid temperatures Applicable tubing materials Air 1.5 MPa 1 MPa 0.1 MPa 50% or more of the operating pressure (0.1 MPa or more) 5 to 60 C (No freezing) Nylon, Soft nylon, Polyurethane * Use caution at the max. operating pressure when using soft nylon or polyurethane tubing. (Refer to the Web Catalog for details.) Flow Rate and Sonic Conductance AS2200-m01m-X785 AS2201-m01-Fmm-X785 AS2200-m02m-X785 AS2201-m02-Fmm-X785 AS3200-m03m-X785 AS3201-m03-Fmm-X785 AS4200-m04m-X785 AS4201-m04-Fmm-X785 Port size on the valve side ø6, ø8, 1/8 ø6, ø8 ø10, 1/4 ø8 ø10, 3/8 ø10 ø12, 1/2 Sonic conductance [dm 3 /(s bar)] Critical pressure ratio How to Order AS S X785 Body size 2 1/8, 1/4 3 3/8 4 1/2 Thread type Nil R, Rc G G Port size 01 1/8 02 1/4 03 3/8 04 1/2 Seal method Nil Without sealant (for G) S With sealant (for R) * R thread type: With sealant G thread type: Without sealant AS4201 Thread type Nil R, Rc G G 04 Port size 04 1/2 With F 10 S X785 Seal method Nil Without sealant (for G) S With sealant (for R) * R thread type: With sealant G thread type: Without sealant applicable tubing O.D.*1 10 ø10 12 ø12 *1 For selecting applicable tubing O.D., refer to the cover page. 1 AS Body size 2 1/8, 1/4 3 3/ F 06 S Thread type Nil R G G Port size 01 1/8 02 1/4 03 3/8 With s X785 Seal method Nil Without sealant (for G) S With sealant (for R) * R thread type: With sealant G thread type: Without sealant applicable tubing O.D.*1 06 ø6 08 ø8 10 ø10 *1 For selecting applicable tubing O.D., refer to the cover page.

3 Pilot Check Valve: Metal Body Type AS-X785 Construction Female thread () With s y!4!3 i w o r!5 q!2!1!9!8 y!4!3 i w r o u!5!2!1 u t!6!7!0!6!7 e!0 t q e!6 e : G thread : Female thread!6!7@1 e!0t q Component Parts No. Description Material Note 1 Body A ZDC Platinum silver 2 Pilot body Brass Electroless nickel plating 3 Guide Brass Electroless nickel plating 4 Piston Brass Electroless nickel plating 5 Valve Stainless steel, NBR 6 Cover Brass Electroless nickel plating 7 DY seal NBR 8 DY seal NBR 9 Spring Stainless steel 10 Spring Stainless steel 11 Cassette Attached to body A for the type No. Description Material Note 12 Seal NBR 13 O-ring NBR 14 Ring Stainless steel 15 O-ring NBR 16 O-ring NBR 17 Bushing PBT/Brass Brass (Electroless nickel plating) for G thread 18 O-ring NBR 19 Gasket NBR 20 Domed cap nut Stainless steel 21 O-ring Only for G thread 2

4 AS-X785 Dimensions AS2200/3200/4200-mS-X785 AS2200/3200/4200-Gm-X785 T3 T3 T2 T2 T2 T3 H1 H2 D1 D2 Weight [g] AS S-X785 R1/8 Rc1/8 M5 x AS2200-G01-X785 G1/8 G1/8 M5 x AS S-X785 R1/4 Rc1/4 Rc1/ AS2200-G02-X785 G1/4 G1/4 G1/ AS S-X785 R3/8 Rc3/8 Rc1/ AS3200-G03-X785 G3/8 G3/8 G1/ AS S-X785 R1/2 Rc1/2 Rc1/ AS4200-G04-X785 G1/2 G1/2 G1/ [mm] 3

5 Pilot Check Valve: Metal Body Type AS-X785 Dimensions AS FmS-X785 AS4201-G04-Fm-X785 T3 T3 Applicable tubing O.D. øt2 Applicable tubing O.D. øt2 M1 M1 øt2 T3 H1 H2 D1 D2 M1 Weight [g] AS F10S-X785 R1/2 ø10 Rc1/ AS F12S-X785 R1/2 ø12 Rc1/ AS4201-G04-F10-X785 G1/2 ø10 G1/ AS4201-G04-F12-X785 G1/2 ø12 G1/ [mm] 4

6 AS-X785 Dimensions AS2201/3201-m-FmS-X785 AS2201/3201-Gm-Fm-X785 Applicable tubing O.D. øt3 L4 M2 Applicable tubing O.D. øt3 L4 M2 ød3 Applicable tubing O.D. øt2 ød3 Applicable tubing O.D. øt2 M1 M1 øt2 øt3 H1 H2 D1 D2 D3 L4 M1 M2 Weight [g] AS F06S-X785 R1/8 ø6 ø AS F08S-X785 R1/8 ø8 ø AS2201-G01-F06-X785 G1/8 ø6 ø AS2201-G01-F08-X785 G1/8 ø8 ø AS F06S-X785 R1/4 ø6 ø AS F08S-X785 R1/4 ø8 ø AS F10S-X785 R1/4 ø10 ø AS2201-G02-F06-X785 G1/4 ø6 ø AS2201-G02-F08-X785 G1/4 ø8 ø AS2201-G02-F10-X785 G1/4 ø10 ø AS F08S-X785 R3/8 ø8 ø AS F10S-X785 R3/8 ø10 ø AS3201-G03-F08-X785 G3/8 ø8 ø AS3201-G03-F10-X785 G3/8 ø10 ø [mm] 5

7 AS-X785 Specific Product Precautions Be sure to read this before handling the products. For safety instructions and flow control equipment precautions, refer to the Handling Precautions for SMC Products and the Operation Manual on the SMC website: Design/Selection 1. This product cannot be used for accurate and precise intermediate stops of the actuator. Due to the compressibility of air as a fluid, the actuator will continue to move until it reaches a position of pressure balance, even though the pilot check valve closes with an intermediate stop signal. 2. This product cannot be used to hold a stop position for an extended period of time. Pilot check valves and actuators are not guaranteed for zero air leakage. Therefore, it is sometimes not possible to hold a stop position for an extended period of time. In the event that holding for an extended time is necessary, a mechanical means for holding should be devised. 3. Consider the release of residual pressure. Actuators may move suddenly due to residual pressure, which can be dangerous during maintenance procedures. 4. When used in a balance control circuit, there are instances in which the check valve cannot release, even though the pilot pressure is 50% of the operating pressure. In these cases, the pilot pressure should be the same as the operating pressure. 5. For reference, SMC has conducted endurance tests in which ON and OFF operation of the check valve was performed at the maximum operating pressure with a confirmed endurance of 10 million cycles. Since the tests were performed under limited conditions, use caution in evaluating the results. 6. The check valve has a construction in which it is closed by the differential pressure generated when the inlet pressure (IN side) or outlet pressure (OUT side) solenoid valve is switched. Be aware that the check valve does not close completely and the outlet pressure (OUT side) may drop when the inlet pressure (IN side) drops slowly and the differential pressure becomes smaller than the minimum operating pressure or cracking pressure. 7. Confirm the specifications. Products represented in this catalog are designed only for use in compressed air systems (including vacuum). Do not operate at pressures, temperatures, etc., beyond the range of specifications, as this can cause damage or malfunction. (Refer to the specifications.) Please contact SMC when using a fluid other than compressed air (including vacuum). We do not guarantee against any damage if the product is used outside of the specification range. Installation 1. When mounting, firmly align the tool to be used with the hexagonal portion of the pilot body. If the hexagonal portion is damaged as a result of failure to properly align the tool, the pilot body will be deformed, and poor pilot operation may result. 2. Do not use fittings for applications involving continuous rotation. The product may be damaged. Air Source 1. If moisture enters the inside of the connected piping, the cover may corrode, leading to a pilot operation malfunction. 2. When there is a large amount of drainage Compressed air containing a large amount of drainage can cause the malfunction of pneumatic equipment. An air dryer or water separator should be installed upstream from filters. Caution 1. Install an air filter. Install an air filter upstream near the valve. Select an air filter with a filtration size of 5 μm or smaller. Operating Environment 1. Do not use in an atmosphere containing corrosive gases, chemicals, sea water, water, water steam, or where there is direct contact with any of these. Refer to each construction drawing for information on the materials of flow control equipment. 2. Do not expose the product to direct sunlight for an extended period of time. 3. Do not use in a place subject to heavy vibration and/or shock. 4. Do not mount the product in locations where it is exposed to radiant heat. Maintenance 1. Perform maintenance inspections according to the procedures indicated in the operation manual. If handled improperly, malfunction or damage of machinery and equipment may occur. 2. Maintenance work If handled improperly, compressed air can be dangerous. Assembly, handling, repair, and element replacement of pneumatic systems should be performed by a knowledgeable and experienced person. 3. Drain flushing Remove drainage from air filters regularly. 4. Removal of equipment, and supply/exhaust of compressed air Before components are removed, first confirm that measures are in place to prevent workpieces from dropping, run-away equipment, etc. Then, cut off the supply pressure and electric power, and exhaust all compressed air from the system using the residual pressure release function. When machinery is restarted, proceed with caution after confirming that appropriate measures are in place to prevent sudden movement. 6

8 Safety Instructions Be sure to read the Handling Precautions for SMC Products (M-E03-3) and Operation Manual before use.